Valve cover



FIG. 1 is a perspective view of a valve cover showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side view thereof; and,

FIG. 6 is another side view thereof. 

CLAIM The ornamental design for a valve cover, as shown and described. 